Abdur -Rahman Awwad Al Fataftah

University of Jordan | UJ · Department of Animal Production

This study was conducted to investigate the potential of bovine casein to mitigate the inflammatory responses in heat-stressed broiler chickens. One-day-old Ross 308 male broiler chickens (n = 1200) were reared using standard management practices. On d 22 of age, birds were divided into 2 main groups and kept either under thermoneutral temperature...

Probiotics have growth promoting effects even under periods of heat stress challenge. More information is needed to understand the mechanisms by which probiotics maintain the growth performance. The aim of this study was to evaluate the effect of a probiotic based on Bacillus subtilis bacteria on growth related mechanisms of broilers under heat str...

Study objectives were to determine the effects of three levels of natural bentonite supplementation (0, 20, and 40 g/kg of feed) on some performance and intestinal health parameters in lambs under hot conditions. Twenty-four Awassi lambs (BW = 50.7±4 kg) were purchased and assigned to their respective treatments. Treatments were (1) basal diet cont...

The objective of this study was to investigate the pre-weaning survival rates of Awassi lambs and identify the causes of death in extensive and semi-extensive production systems. The study was designed to collect data under field conditions. Data were recorded on 29290 lambs born alive during lambing seasons from 2011 to 2015. Postmortem autopsy fi...

Butyrate modulates intestinal epithelial cells structure and function. Three hundred and sixty Lohmann LSL-Classic layer cockerels were used to investigate the effect of butyrate on heat stress-induced intestinal injury and intestinal integrity. The experiment was conducted from day 85 to 105 of age. The birds were divided randomly into 3 treatment...

The study investigated the effect of butyric acid on heat-stressed broilers performance, intestinal histological changes, beneficial intestinal bacteria counts and recovery responses. One hundred and twenty-eight Hubbard male broilers were equally distributed into 4 treatment groups, with 8 replicates per treatment (4 birds each). At 21 d of age, b...

A total of 157 samples representing 105 samples of regular poultry feed ingredients and 52 samples of feed composites were collected from various parts of Jordan and analyzed for aflatoxins B1 (AFB1). Incidences of contamination with AFB1 of feed samples were 40% and 23.07% for Enzyme-Linked Iimmunosorbent Assay (ELISA) and High-Performance Liquid...

The aim of this study was to investigate the effect of dietary inclusion of Bacillus subtilis on performance, thermotolerance, intestinal villus-crypt system, and intestinal microflora balance of broilers subjected to heat stress. Four hundred eighty 1-d-old Hubbard male broilers were randomly distributed into 4 treatment groups, with 6 replicates...

The effects of some plant extracts which had antipyretic property and synthetic acetylsalicylic acid were studied. Broiler chicks were grown to 35 days of age under normal conditions, then placed in environmental chambers maintained under constant heat stress (35 ºC) conditions for three weeks. During the period of heat stress exposure, birds were...

The efficacy of desert coolers to improve thermal responses and performance of laying hens under heat stress conditions was investigated. Two identical layers houses of deep litter system providing 1600 cm2/hen were used. The first house was equipped with a desert cooler while the other was left without control on air temperature (the control treat...

In this study, Lactobacillus plantarum (ATCC 8014), Lactobacillus casei (ATCC 393), Lactobacillus lactis (ATCC 7830) and Lactobacillus fermentum (ATCC 9338) and L. reuteri strains were isolated from goat, sheep, cattle and camel rumen. The bacterial strains were cultured anaerobically in MRS broth and MRS agar at 37±1°C and administered (10 6 CFU/m...

This experiment was conducted to study the effect of dried plant extract (DPE) Lepidium sativum and Brassica juncae seeds on milk yield, chemical composition and nutritional properties in Awassi ewes' milk. Twenty ewes (3-4 years old and body weight (35-40 kg) were assigned randomly into 5 groups (n = 4). The DPE was prepared by dissolving 1.5 gm f...

Maintaining suitable balance of naturally synthesized nutrients by nutrient producer microorganisms is very critical worldwide. In this study, the effect of lactic acid bacteria (LAB) was tested on the cholestrol, vitamin and amino acid content of eggs of Hisex brown and Hisex white layer hens. The strains tested were Lactobacillus plantarum (ATCC...

The present study investigated the effects of supplementing the ration of ewes with soybean oil (SBO) or sunflower oil (SFO) on the performance of lactating ewes, sucking lambs, and on CLA and other fatty acids in milk. 125 Awassi ewes were assigned into 5 groups; a control diet (TMR) without added oil, and 4 diets supplemented with 3%SBO, 5%SBO, 3...

Eighty Lohmann White laying hens were used to investigate the effect of dietary inclusion of Bacillus subtilis and inulin, individually or in combination, on egg production, eggshell quality, tibia traits, Ca retention, and small intestine morphology and microflora composition from 64 to 75 weeks of age. Hens were randomly distributed into 4 treatm...

An experiment was conducted to evaluate the effect of different levels of dry fat (dried palm oil) as an energy source and two feed forms (mash and pelleted)used in the finisher stage on growth performance, carcass traits, meat quality and blood serum metabolites of broiler chickens. A total of 450 straight-run Lohmann broiler chicks reared in an o...

Ninety-six White laying hens (64 weeks old) were used to investigate the effect of dietary inclusion of Bacillus subtilis on performance and eggshell quality. Hens were randomly distributed into three treatment groups and fed basal diet (control), basal diet plus 0.5 g/kg B. subtilis (Probiotic-0.5), or basal diet plus 1 g/kg B. subtilis (Probiotic...

A total of 332 postpartum (pp) lactating Friesian cows allocated in two treatment groups at a commercial dairy farm were used to study the effect of a modified Ovsynch protocol supplemented with exogenous estradiol (E2) on fertility in lactating dairy cows during the summer season. All cows were injected with gonadotrophin releasing hormone (GnRH),...

The effect of aflatoxins B1 (AFB1) contaminated feeds on performance parameters (feed intake, body gain and feed conversion ratio) and on the Conjugated Linoleic Acid (CLA) content of chicken meat was investigated in broiler chicks. Feed contaminated with aflatoxin B1 caused a significant (p<0.05) increase in feed conversion ratios, a decrease in b...

Primary Audience: Nutritionists, Ministry of Agriculture, Poultry Producers, Feed Manufacturers SUMMARY The efficiency of decontamination of aflatoxin residues in poultry feeds through exposure to sunlight (solar radiation), γ-radiation (60 Co), and microwave heating were investigated in arti-ficially contaminated feed samples. Photodegradation of...

An experiment was conducted in the poultry farm of the faculty of agriculture in the campus of Jordan University to evaluate the effect of heat stress on the performance and some physiological parameters of 4-8 week old Isa Vedette broilers. Environmental temperatures in controlled environmental rooms were constant 25 (control), 30 and 35±2<SUP>...

Of all the countries in the arid Middle East, Jordan potentially faces the worst water crisis. The exacerbating conditions contributing to this crisis include the arid climate, the unsolved water sharing disputes in the region, the high population growth rate, the acute financial constraints, and the lack of a sustained peace in the area. The impac...

The acclimatization of poultry to a hot, dry climate was assessed by studying changes in rectal temperature (Tr) during regular daily exposure to an ambient temperature of 38 degrees C and 26% RH. Laying hens of two strains, young chicks, growing broilers and broiler breeders were able to acclimatise, in varying degrees, to these conditions. Acclim...

Laying hens when transferred from accommodation at an ambient temperature (Ta) of 30 degrees C to one of 20 degrees C failed to acclimatise to intermittent heat stress (Ta 38 degrees C) commencing one day after the transfer. After 21 d of intermittent exposure to 38 degrees C these hens showed little or no increase in heat tolerance, whereas hens l...

Thesis (Ph. D.)--University of London, 1980.